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參數資料
| 型號： | ATS685LSHTN-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數： | 9/15頁 |
| 文件大小： | 437K |
| 描述： | IC HALL EFFECT GEAR SENSOR 4SIP |
| 特色產品： | ATS685 Sensor IC |
| 標準包裝： | 1 |
| 傳感范圍： | 5mT ~ 150mT |
| 類型： | 專用型 |
| 電源電壓： | 4 V ~ 24 V |
| 電流 - 電源： | 8mA |
| 輸出類型： | 數字式，開漏極 |
| 特點： | 輪齒類型 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | 4-SIP |
| 供應商設備封裝： | 4-SIP |
| 包裝： | 標準包裝 |
| 其它名稱： | 620-1399-6 |
Two-Wire, Zero Speed
Differential Gear Tooth Sensor IC
ATS685LSH
9
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
(A) TEAG varying; cases such as
eccentric mount, out-of-round region,
normal operation position shift
(B) Internal analog signal, V
PROC
,
typically resulting in the IC
0
B
OP
B
RP
B
OP
B
RP
B
OP
B
RP
B
OP
B
RP
B
OP
B
OP
B
RP
360
Target Rotation (?
Hysteresis Band
(Delimited by switchpoints)
V+
(C) Internal analog signal, V
PROC
, representing
magnetic field for digital output
V+
Larger
TEAG
Smaller
TEAG
IC
Target
Larger
TEAG
Target
IC
Smaller
TEAG
Smaller
TEAG
Figure 5. The Continuous Update algorithm allows the Allegro IC to interpret and adapt to variances in the magnetic field generated by the target
as a result of eccentric mounting of the target, out-of-round target shape, and similar dynamic application problems that affect the TEAG (Total
Effective Air Gap). As shown in panel A, the variance in the target position results in a change in the TEAG. This affects the IC as a varying
magnetic field, which results in proportional changes in the internal analog signal, V
PROC
, shown in panel B. The Continuous Update algorithm is
used to establish switchpoints based on the fluctuation of V
PROC
, as shown in panel C.
Continuous Update of Switchpoints
Switchpoints are the threshold levels of the differential internal
analog signal, V
PROC
, at which the device changes output signal
state. The value of V
PROC
is directly proportional to the magnetic flux
density, B, induced by the target and sensed by the Hall elements.
As V
PROC
rises through a certain limit, referred to as the operate
point, B
OP
, the output state changes from high to low. As V
PROC
falls below B
OP
to a certain limit, the release point, B
RP
, the output
state changes from low to high.
As shown in figure 5, threshold levels for the switchpoints are
established as a function of the peak input signal levels. The device
incorporates an algorithm that continuously monitors the input signal
and updates the switching thresholds accordingly with limited inward
movement of V
PROC
. The switchpoint for each edge is determined
by the detection of the previous two signal edges. In this manner,
variations are tracked in real time.
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| ATS692LSHTN-RSNPH-T | 功能描述:IC HALL EFFECT SENSOR 4SIP 制造商:allegro microsystems, llc 系列:- 包裝:帶卷（TR） 零件狀態:有效 功能:專用型 技術:霍爾效應 極化:- 感應范圍:69% 跳閘，31% 釋放 測試條件:-40°C ~ 150°C 電壓 - 電源:4 V ~ 24 V 電流 - 電源（最大值）:16.5mA 電流 - 輸出（最大值）:- 輸出類型:電流 特性:- 工作溫度:-40°C ~ 150°C（TA） 封裝/外殼:4-SIP 模塊 供應商器件封裝:4-SIP 標準包裝:800 |
| ATS693LSGTN-RSNYPH-T | 功能描述:IC HALL EFFECT SENSOR 4SIP 制造商:allegro microsystems, llc 系列:- 包裝:帶卷（TR） 零件狀態:有效 功能:專用型 技術:霍爾效應 極化:- 感應范圍:69% 跳閘，31% 釋放 測試條件:-40°C ~ 150°C 電壓 - 電源:4 V ~ 24 V 電流 - 電源（最大值）:16.5mA 電流 - 輸出（最大值）:- 輸出類型:電流 特性:- 工作溫度:-40°C ~ 150°C（TA） 封裝/外殼:4-SIP 模塊 供應商器件封裝:4-SIP 標準包裝:800 |
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